Below is a list of Garden City LA zip codes. For your research we have also included Garden City Area Code, Time Zone, UTC and the local Saint Mary County FIPS Code. Each Garden City Louisiana zip code has a center Longitude / Latitude point (the Garden City center is -91.465896606445 / 29.76549911499). For your convenience we have also indicated if that zip code in Garden City observes Daylight Savings time.